Saw-jointer



UNITED STATES PATENT FFICE.

EDWIN BERTRAM PIKE, OF HAVERHILL, NEW 1-IAMPSHIRE.

SAW-JOINTER.

SPECIFICATION formng part of Letters Patent 1\To. 507,386, dated October 24, 1893.

Applcation filed May 6, 1893. Seral No 473,293. (No model.)

T0 wZZ wh0m it may concern:

Be it known that l EDWIN BERTRAM PIKE, a citizen of the United States, residing at I-Iaverhill, in the county of Grafton, State of New Hampshire, have invented certain new and useful Improvements in Saw-Jointers, of which the following is a specification, reference beinghadtherein to the acoompanyingdrawings.

This invention relates to certain new and useful mprovements in saw jointers, and it has for its objects among others to provide a simple and cheap saw jointer in which may be employed any desired kind of a file, flat, square or three-cornered, and in which the file will be held firrnly and squarely. I arrange the screws or other means employedto hold the file so that they bear upon the file at right angles to the jaws, and one of the holding jaws I make adjustable and mount it to be yieldingly held against the saw.

The device as a whole embodies several features of novelty which combine to make it a more complete and efficient device and one loy which botter results are obtained than by prior fornus.

Other objects and advantages of the invention will hereinafter appear and the nevel features thereot' will be specifically defined by the appended claims.

The invention is olearly illustrated in the acconupanying drawings, which, with the letters of reference marked thereon, form a part of this specification, and in which- Figure 1 is a perspective view of my improved saw join ter shown with a three-cornered file therein. Fig. 2 is a central vertical cross section through the same with a flat file in position. Fig. 3 is a bottorn plan.

Like letters of reference indicate like parts throughout the several views.

Referring now to the details of the drawings by letter, A designates the body portion of the device which may be of any desired material and size and as shown consists of a reotangular portion provided with a handle A' and ateach end of the handle portion with an arched portion a through which are tapped the screws B by which the file is held in place. These arched porti0ns serve to receive one edge of the file When a three-cornered file is used as seen in Fig. 1. The lower horizontal portions a of the body portion serve to receive and support the file as seen in Figs.

1 and 2, and one of these-horizontal portions is provided with a downward extension a which forms one of the jaws for holding the saw. The otherjaw is formed by the angle plate B the vertical portion of which is arranged parallel with the jaw a and its horizontal portion is provided with slots b through which pass the screws O into the corresponding horizontal portion of the body portion as seen in all of the views. The body portion is provided upon the side which carries the ad jus'rable jaw B with a depending plate or portion D which has its lower end turned at right angles to form the 1ug or hearing d, upon which is supported a spring E which is held against outward movement by the verticalportion of the part D and its ends a1e designed to engage the lugs b on the ends of the vertical portion of the plate B as seen in Figs. 1 and 3. The horizontal portion of the plate B is provided with a notch B' as seen in Figs. 1 and 3 to permt of the necessary movement of the said plate without contact with the de pending part D.

In practice a file F of any desired kind, showr1 in Fig. 1 as three-cornered and in Fig. 2 as a flat file, is placed in position resting upon the horizontal portions a of the body portion, and held in place by the screws B which bear upon the upper face of the file at right angles to the jaws between which the saw G is held; this holds the file firmly and prevents any movement thereof and thus insures a perfectly true joint. The jaw formed by the plate B can be adjusted to accommodate any thickness of saw blade and the spring permits of the necessary yielding of the said plate or jaw and serves to force it against the saw blade as will be readily understood.

Modifications in detail may be resorted to without departing from the spirit of the invention or sacrificing any of its advantages; for instance, instead of a file I may sonuetimes en1ploy a piece of stone, emery or other abrading material in lieu of the file. The jaws may be arranged so as to be adjusted to bring the file on to the saw teeth at other than a right angle, if desired.

What I claim as new is- 1. The combination with the body portion with fileholding 1neans and a saw-holding jaw, of a spring-pressed and adj ustab1e sawwith horizontal portions, jaw and depending holding jaw, and a spring held at its center portion Wth horizental lug, of the adjustable by a depending portion of the fixed jaw and jaw havng lugs at its ends, and the spring arranged parallel with the movable jaw held by said depending portion and 1ngs and 15 5 against whieh its ends bear as set forth. hearing against the movable jaw, as set forth. 2. The combination with the body portion In testimonywhereof Iafx my signature in With horizontal portions and depending jaw, presence of two Witnesses.

and depending portiou wtl1 horizontal lag, EDWIN BERTRAM PIKE. of the adjusable jaw and the spring bearng Wibnesses: 1o thereon and held by said 1ug, as set: forth. C. H. AYER,

3. The combination with the body portion A. W. KEYES. 

